GAL20V8B-25QJN

Programmable Logic Device Pld Overview

The GAL20V8B-25QJN is a discontinued Electrically Erasable Programmable Logic Device (EPLD) manufactured by Lattice Semiconductor. It utilizes E2CMOS technology and features 10 dedicated inputs, 8 I/O lines, and an 8-output logic macrocell architecture within a 28-pin PLCC package. The device operates at a maximum propagation delay of 25 ns with a typical supply current of 45 mA in the quarter-power configuration. It supports reprogrammable logic with high-speed electrical erasure and includes active pull-ups on all pins.

Programmable Logic Device Pld Feature Summary

• High-performance E2CMOS technology with 25 ns maximum propagation delay
• Quarter-power configuration with 45 mA typical operating current
• Reprogrammable cells supporting 100 erase/write cycles and 20-year data retention
• Active pull-ups on all pins for reliable signal integrity

Programmable Logic Device Pld Applications

• DMA Control
• State Machine Control
• High Speed Graphics Processing
• Standard Logic Speed Upgrade

Programmable Logic Device Pld Procurement Notes

This component has been officially discontinued per Product Change Notification PCN#13-10. Verification of availability requires checking with authorized distributors or secondary market suppliers such as Rochester Electronics. No new production units are available from the manufacturer.

Programmable Logic Device Pld Selection Notes

Select this part only if legacy compatibility with specific PAL architectures (e.g., 20R8, 20L8) is required. Ensure design constraints accommodate the 25 ns speed grade and 45 mA power consumption. Verify that the 28-pin PLCC footprint matches the existing PCB layout.

Programmable Logic Device Pld Part Context

The GAL20V8B series represents the industrial-grade variant of the GAL20V8 family, offering extended temperature range capabilities compared to commercial versions. The 'Q' suffix denotes the quarter-power option, while 'N' indicates lead-free packaging compliance.

Programmable Logic Device Pld Replacement Considerations

No direct replacement is specified in the datasheet. Users should consult Lattice Semiconductor for modern FPGA or CPLD alternatives suitable for migrating from the discontinued GAL20V8 platform.